公开(公告)号：US09831133B2

公开(公告)日：2017-11-28

申请号：US15352605

申请日：2016-11-16

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chao-Hung Lin ,  Chih-Kai Hsu ,  Li-Wei Feng ,  Shih-Hung Tsai ,  Chien-Ting Lin ,  Jyh-Shyang Jenq ,  Ching-Wen Hung ,  Jia-Rong Wu ,  Yi-Hui Lee ,  Ying-Cheng Liu ,  Yi-Kuan Wu ,  Chih-Sen Huang ,  Yi-Wei Chen

IPC: H01L21/00 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/51 ,  H01L21/28

CPC classification number: H01L21/823842 ,  H01L21/28088 ,  H01L27/092 ,  H01L27/0922 ,  H01L29/511 ,  H01L29/517

Abstract: A method for manufacturing semiconductor devices having metal gate includes follow steps. A substrate including a plurality of isolation structures is provided. A first nFET device and a second nFET device are formed on the substrate. The first nFET device includes a first gate trench and the second nFET includes a second gate trench. A third bottom barrier layer is formed in the first gate trench and a third p-work function metal layer is formed in the second gate trench, simultaneously. The third bottom barrier layer and the third p-work function metal layer include a same material. An n-work function metal layer is formed in the first gate trench and the second gate trench. The n-work function metal layer in the first gate trench directly contacts the third bottom barrier layer, and the n-work function metal layer in the second gate trench directly contacts the third p-work function metal layer.

公开(公告)号：US09799769B2

公开(公告)日：2017-10-24

申请号：US15399755

申请日：2017-01-06

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chien-Ting Lin

IPC: H01L29/78 ,  H01L29/06 ,  H01L29/423 ,  H01L29/66

CPC classification number: H01L29/785 ,  H01L21/283 ,  H01L21/31105 ,  H01L21/32131 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/6681

Abstract: A semiconductor device includes: a substrate having a first fin-shaped structure and a second fin-shaped structure thereon, a shallow trench isolation (STI) around the first fin-shaped structure and the second fin-shaped structure, a gate isolation directly on the second fin-shaped structure, and a gate line on the STI and the first fin-shaped structure. Preferably, the gate line includes a L-shaped structure.

公开(公告)号：US09673100B2

公开(公告)日：2017-06-06

申请号：US14536696

申请日：2014-11-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ching-Wen Hung ,  Chih-Sen Huang ,  Yi-Wei Chen ,  Chien-Ting Lin ,  Shih-Fang Tzou ,  Chia-Lin Lu ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Feng-Yi Chang ,  Chieh-Te Chen

IPC: H01L21/8234 ,  H01L21/311 ,  H01L29/06 ,  H01L27/088 ,  H01L29/49 ,  H01L21/768

CPC classification number: H01L21/823437 ,  H01L21/31144 ,  H01L21/76816 ,  H01L21/76895 ,  H01L21/76897 ,  H01L21/823431 ,  H01L21/823475 ,  H01L27/088 ,  H01L27/0886 ,  H01L29/0653 ,  H01L29/495 ,  H01L29/4966

Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a plurality of gate structures on the substrate; forming a first stop layer on the gate structures; forming a second stop layer on the first stop layer; forming a first dielectric layer on the second stop layer; forming a plurality of first openings in the first dielectric layer to expose the second stop layer; forming a plurality of second openings in the first dielectric layer and the second stop layer to expose the first stop layer; and removing part of the second stop layer and part of the first stop layer to expose the gate structures.

公开(公告)号：US20170062282A1

公开(公告)日：2017-03-02

申请号：US15352605

申请日：2016-11-16

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chao-Hung Lin ,  Chih-Kai Hsu ,  Li-Wei Feng ,  Shih-Hung Tsai ,  Chien-Ting Lin ,  Jyh-Shyang Jenq ,  Ching-Wen Hung ,  Jia-Rong Wu ,  Yi-Hui Lee ,  Ying-Cheng Liu ,  Yi-Kuan Wu ,  Chih-Sen Huang ,  Yi-Wei Chen

IPC: H01L21/8238 ,  H01L21/28

CPC classification number: H01L21/823842 ,  H01L21/28088 ,  H01L27/092 ,  H01L27/0922 ,  H01L29/511 ,  H01L29/517

Abstract: A method for manufacturing semiconductor devices having metal gate includes follow steps. A substrate including a plurality of isolation structures is provided. A first nFET device and a second nFET device are formed on the substrate. The first nFET device includes a first gate trench and the second nFET includes a second gate trench. A third bottom barrier layer is formed in the first gate trench and a third p-work function metal layer is formed in the second gate trench, simultaneously. The third bottom barrier layer and the third p-work function metal layer include a same material. An n-work function metal layer is formed in the first gate trench and the second gate trench. The n-work function metal layer in the first gate trench directly contacts the third bottom barrier layer, and the n-work function metal layer in the second gate trench directly contacts the third p-work function metal layer.

Abstract translation: 具有金属栅极的半导体器件的制造方法包括以下步骤。 提供了包括多个隔离结构的基板。 第一nFET器件和第二nFET器件形成在衬底上。 第一nFET器件包括第一栅极沟槽，第二nFET包括第二栅极沟槽。 在第一栅极沟槽中形成第三底部阻挡层，同时在第二栅极沟槽中形成第三p功函数金属层。 第三底部阻挡层和第三p功函数金属层包括相同的材料。 在第一栅极沟槽和第二栅极沟槽中形成n功函数金属层。 第一栅极沟槽中的n功函数金属层直接接触第三底部势垒层，并且第二栅极沟槽中的n功函数金属层直接接触第三p功函数金属层。

公开(公告)号：US09552978B1

公开(公告)日：2017-01-24

申请号：US15059282

申请日：2016-03-02

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Tong-Jyun Huang ,  Li-Wei Feng ,  Shih-Hung Tsai ,  Jyh-Shyang Jenq ,  Chien-Ting Lin

IPC: H01L21/762 ,  H01L21/02 ,  H01L21/3105 ,  H01L29/66

CPC classification number: H01L21/02164 ,  H01L21/02126 ,  H01L21/022 ,  H01L21/0223 ,  H01L21/02271 ,  H01L21/02274 ,  H01L21/02277 ,  H01L21/02337 ,  H01L21/02348 ,  H01L21/31056 ,  H01L21/823431 ,  H01L21/823481 ,  H01L29/66795 ,  H01L29/785

Abstract: A method of decreasing fin bending, includes providing a substrate including a plurality of fins, wherein a plurality of trenches are defined by the fins, the trenches include a first trench and a second trench, and the second trench is wider than the first trench. Later, a flowable chemical vapor deposition process is performed to form a silicon oxide layer covering the fins, filling up the first trench and partially filling in the second trench. After that, the silicon oxide layer is solidified by a UV curing process. Finally, after the UV curing process, the silicon oxide layer is densified by a steam anneal process.

Abstract translation: 减少翅片弯曲的方法包括提供包括多个翅片的基底，其中由翅片限定多个沟槽，所述沟槽包括第一沟槽和第二沟槽，并且所述第二沟槽比所述第一沟槽更宽。 然后，进行可流动的化学气相沉积工艺以形成覆盖翅片的氧化硅层，填充第一沟槽并部分填充第二沟槽。 之后，氧化硅层通过UV固化工艺固化。 最后，在UV固化过程之后，氧化硅层通过蒸汽退火工艺致密化。

公开(公告)号：US20160197005A1

公开(公告)日：2016-07-07

申请号：US15072370

申请日：2016-03-17

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Po-Chao Tsao ,  Lung-En Kuo ,  Chien-Ting Lin ,  Shih-Fang Tzou

IPC: H01L21/762 ,  H01L21/027 ,  H01L21/8234 ,  H01L21/308 ,  H01L21/3105

CPC classification number: H01L21/76224 ,  H01L21/0273 ,  H01L21/3086 ,  H01L21/31053 ,  H01L21/823431 ,  H01L21/823481 ,  H01L29/0653 ,  H01L29/0657 ,  H01L29/66795 ,  H01L29/6681 ,  H01L29/785

Abstract: The present invention provides a semiconductor structure including a substrate, at least one fin group and a plurality of sub-fin structures disposed on the substrate, wherein the fin group is disposed between two sub-fin structures, and a top surface of each sub-fin structure is lower than a top surface of the fin group; and a shallow trench isolation (STI) disposed in the substrate, wherein the sub-fin structures are completely covered by the shallow trench isolation.

公开(公告)号：US09318490B2

公开(公告)日：2016-04-19

申请号：US14153079

申请日：2014-01-13

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Po-Chao Tsao ,  Yao-Hung Huang ,  Chien-Ting Lin ,  Ming-Te Wei

IPC: H01L27/092 ,  H01L21/02 ,  H01L21/321 ,  H01L21/8238 ,  H01L21/8234

CPC classification number: H01L27/0922 ,  H01L21/02164 ,  H01L21/32115 ,  H01L21/823437 ,  H01L21/82345 ,  H01L21/823456 ,  H01L21/823828 ,  H01L21/823842 ,  H01L21/82385

Abstract: The present invention provides a semiconductor structure, including a substrate, having a dielectric layer disposed thereon, a first device region and a second device region defined thereon, at least one first trench disposed in the substrate within the first device region, at least one second trench and at least one third trench disposed in the substrate within the second device region, a work function layer, disposed in the second trench and the third trench, wherein the work function layer partially covers the sidewall of the second trench, and entirely covers the sidewall of the third trench, and a first material layer, disposed in the second trench and the third trench, wherein the first material layer covers the work function layer disposed on partial sidewall of the second trench, and entirely covers the work function layer disposed on the sidewall of the third trench.

Abstract translation: 本发明提供一种半导体结构，包括其上设置有介电层的基板，限定在其上的第一器件区域和第二器件区域，设置在第一器件区域内的衬底中的至少一个第一沟槽，至少一个第二 沟槽和设置在第二器件区域内的衬底中的至少一个第三沟槽，设置在第二沟槽和第三沟槽中的功函数层，其中功函数层部分地覆盖第二沟槽的侧壁，并且完全覆盖 第三沟槽的侧壁和设置在第二沟槽和第三沟槽中的第一材料层，其中第一材料层覆盖设置在第二沟槽的部分侧壁上的功函数层，并且完全覆盖设置在第二沟槽上的功函数层 第三沟槽的侧壁。

公开(公告)号：US09129985B2

公开(公告)日：2015-09-08

申请号：US13784839

申请日：2013-03-05

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Po-Chao Tsao ,  Chien-Ting Lin ,  Chien-Ming Lai ,  Chi-Mao Hsu

IPC: H01L29/76 ,  H01L29/94 ,  H01L29/66 ,  H01L29/49 ,  H01L29/51 ,  H01L29/78 ,  H01L21/8238

CPC classification number: H01L29/66545 ,  H01L21/28088 ,  H01L21/28185 ,  H01L21/32115 ,  H01L21/823842 ,  H01L27/0922 ,  H01L29/42364 ,  H01L29/42376 ,  H01L29/4966 ,  H01L29/51 ,  H01L29/517 ,  H01L29/518 ,  H01L29/78 ,  H01L29/7833

Abstract: A manufacturing method of semiconductor devices having metal gate includes following steps. A substrate having a first semiconductor device and a second semiconductor device formed thereon is provided. The first semiconductor device includes a first gate trench and the second semiconductor device includes a second gate trench. A first work function metal layer is formed in the first gate trench and the second gate trench. A portion of the first work function metal layer is removed from the second gate trench. A second work function metal layer is formed in the first gate trench and the second gate trench. The second work function metal layer and the first work function metal layer include the same metal material. A third work function metal layer and a gap-filling metal layer are sequentially formed in the first gate trench and the second gate trench.

Abstract translation: 具有金属栅极的半导体器件的制造方法包括以下步骤。 提供了具有形成在其上的第一半导体器件和第二半导体器件的衬底。 第一半导体器件包括第一栅极沟槽，第二半导体器件包括第二栅极沟槽。 在第一栅极沟槽和第二栅极沟槽中形成第一功函数金属层。 第一功函数金属层的一部分从第二栅极沟槽去除。 在第一栅极沟槽和第二栅极沟槽中形成第二功函数金属层。 第二功函数金属层和第一功函数金属层包括相同的金属材料。 在第一栅极沟槽和第二栅极沟槽中依次形成第三功函数金属层和间隙填充金属层。

公开(公告)号：US09054187B2

公开(公告)日：2015-06-09

申请号：US14089771

申请日：2013-11-26

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： An-Chi Liu ,  Chun-Hsien Lin ,  Yu-Cheng Tung ,  Chien-Ting Lin ,  Wen-Tai Chiang ,  Shih-Hung Tsai ,  Ssu-I Fu ,  Ying-Tsung Chen ,  Chih-Wei Chen

IPC: H01L29/78 ,  H01L29/786 ,  H01L29/66

CPC classification number: H01L29/7834 ,  H01L29/66795 ,  H01L29/785 ,  H01L29/78654

Abstract: A non-planar semiconductor structure comprises a substrate, at least one fin structure on the substrate, a gate covering parts of the fin structures and part of the substrate such that the fin structure is divided into a channel region stacking with the gate and source/drain region at both sides of the gate, a plurality of epitaxial structures covering on the source/drain region of the fin structures, a recess is provided between the channel region of the fin structure and the epitaxial structure, and a spacer formed on the sidewalls of the gate and the epitaxial structures, wherein the portion of the spacer filling in the recesses is flush with the top surface of the epitaxial structures.

Abstract translation: 非平面半导体结构包括衬底，衬底上的至少一个翅片结构，鳍覆盖部分的鳍结构和衬底的一部分，使得鳍结构被分成与栅极和源极/漏极堆叠的沟道区域， 漏极区域，覆盖在鳍状结构的源极/漏极区域上的多个外延结构，在鳍状结构的沟道区域和外延结构之间设置凹部，以及形成在侧壁上的间隔物 的栅极和外延结构，其中填充在凹槽中的间隔物的部分与外延结构的顶表面齐平。

公开(公告)号：US20150093870A1

公开(公告)日：2015-04-02

申请号：US14042224

申请日：2013-09-30

Applicant: United Microelectronics Corp.

Inventor： Yen-Liang Wu ,  Chung-Fu Chang ,  Yu-Hsiang Hung ,  Ssu-I Fu ,  Chien-Ting Lin ,  Shih-Fang Tzou

IPC: H01L21/28 ,  H01L21/311 ,  H01L29/66

CPC classification number: H01L21/31111 ,  H01L21/3086 ,  H01L21/31116 ,  H01L29/165 ,  H01L29/517 ,  H01L29/6659 ,  H01L29/66636 ,  H01L29/7834 ,  H01L29/7848

Abstract: A method of fabricating a semiconductor device structure is provided. The method includes the following step. A gate dielectric layer is formed on a substrate. A gate electrode is on the gate dielectric layer. The gate dielectric layer exposed by the gate electrode is treated. A first etching process is performed to remove at least a portion of the gate dielectric layer exposed by the gate electrode. A spacer is formed on the sidewall of the gate electrode. A second etching process is performed to form recesses in the substrate beside the gate electrode. Besides, during the first etching process and the second etching process, an etching rate of the treated gate dielectric layer is greater than an etching rate of the untreated gate dielectric layer.

Abstract translation: 提供一种制造半导体器件结构的方法。 该方法包括以下步骤。 在基板上形成栅极电介质层。 栅极电极位于栅极电介质层上。 处理由栅电极露出的栅介电层。 执行第一蚀刻工艺以去除由栅电极暴露的栅介质层的至少一部分。 在栅电极的侧壁上形成间隔物。 执行第二蚀刻工艺以在栅电极旁边的基板中形成凹部。 此外，在第一蚀刻工艺和第二蚀刻工艺期间，经处理的栅极电介质层的蚀刻速率大于未处理的栅极介电层的蚀刻速率。